JPS5679260A - Measuring apparatus for digital signal selective level - Google Patents

Measuring apparatus for digital signal selective level

Info

Publication number
JPS5679260A
JPS5679260A JP15560179A JP15560179A JPS5679260A JP S5679260 A JPS5679260 A JP S5679260A JP 15560179 A JP15560179 A JP 15560179A JP 15560179 A JP15560179 A JP 15560179A JP S5679260 A JPS5679260 A JP S5679260A
Authority
JP
Japan
Prior art keywords
signal
digital signal
digital
sin
external input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP15560179A
Other languages
Japanese (ja)
Other versions
JPH0117112B2 (en
Inventor
Kohei Ono
Tomonori Aoyama
Hiroshi Yoshimura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anritsu Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Anritsu Corp
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anritsu Corp, Nippon Telegraph and Telephone Corp filed Critical Anritsu Corp
Priority to JP15560179A priority Critical patent/JPS5679260A/en
Publication of JPS5679260A publication Critical patent/JPS5679260A/en
Publication of JPH0117112B2 publication Critical patent/JPH0117112B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE: To simplify the constitution of a digital-signal selective-level measuring apparatus by transmitting two signals corresponding to the real-number portion and the imaginary-number portion obtained by converting the external input digital signal into two identical data over a common path by time-division multiplexing.
CONSTITUTION: The external input digital signal is added to a multiplexing converter 5 to double the signalling rate of the data identical with the external input digital signal and transmit it twice successively, and the output is added to one input end of a multiplier 10. On the other hand, in a digital signal generator 9 a sin signal having a given frequency from a digital generator 6 is digitally generated. Moreover, through a switch 8 the sin signal is applied to a π/2 phase advancer 7 to convert into a cos signal. The sin and cos signals are changed over and inputted to the multiplier 10. Its output is inputted through a filter 11, a squarer 12, an adder 13 and unit delay means 14 to a digital integrator 18. The integrated output is converted into a logarithm in a logarithmic converter 19.
COPYRIGHT: (C)1981,JPO&Japio
JP15560179A 1979-12-03 1979-12-03 Measuring apparatus for digital signal selective level Granted JPS5679260A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15560179A JPS5679260A (en) 1979-12-03 1979-12-03 Measuring apparatus for digital signal selective level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15560179A JPS5679260A (en) 1979-12-03 1979-12-03 Measuring apparatus for digital signal selective level

Publications (2)

Publication Number Publication Date
JPS5679260A true JPS5679260A (en) 1981-06-29
JPH0117112B2 JPH0117112B2 (en) 1989-03-29

Family

ID=15609581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15560179A Granted JPS5679260A (en) 1979-12-03 1979-12-03 Measuring apparatus for digital signal selective level

Country Status (1)

Country Link
JP (1) JPS5679260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015537497A (en) * 2012-09-28 2015-12-24 クアルコム，インコーポレイテッド System and method for detecting wireless charging transmission characteristics

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015537497A (en) * 2012-09-28 2015-12-24 クアルコム，インコーポレイテッド System and method for detecting wireless charging transmission characteristics

Also Published As

Publication number Publication date
JPH0117112B2 (en) 1989-03-29

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